Beef liver contains up to 100 times more nutrient than any other meat, liver also has health benefits because it cleans your dog body from the toxins. Liver is a nutrient-rich organ that most dogs love eating. This organ will provide your pet with proteins, fat and vitamin A. These features will help your pet stay healthy. liver is also a good source of iron, copper, niacin, zinc, and phosphorus. It will provide your four-legged friend with vitamin B, omega-3, and omega-6 fatty acids. This is an essential amino acid your dog requires to keep a balanced diet. Apart from being very tasty, the liver will provide them a lot of benefits and keep them in shape.